diff --git a/CHANGELOG.md b/CHANGELOG.md
index 09d380e1..51882859 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,72 @@
 
 All notable changes to this project will be documented in this file. See [standard-version](https://github.com/conventional-changelog/standard-version) for commit guidelines.
 
+## [0.20.1](https://github.com/ERC725Alliance/erc725.js/compare/v0.20.0...v0.20.1) (2023-10-30)
+
+
+### Bug Fixes
+
+* incorrect permission value for `EXECUTE_RELAY_CALL` ([55b8f5e](https://github.com/ERC725Alliance/erc725.js/commit/55b8f5e64c29c5a85d872f605667c88c1546f6b3))
+
+## [0.20.0](https://github.com/ERC725Alliance/erc725.js/compare/v0.19.0...v0.20.0) (2023-10-18)
+
+
+### Features
+
+* add permission `EXECUTE_RELAY_CALL` ([6db8835](https://github.com/ERC725Alliance/erc725.js/commit/6db8835ccd9d1082d9e8184bb2f14972760bea69))
+
+## [0.19.0](https://github.com/ERC725Alliance/erc725.js/compare/v0.18.0...v0.19.0) (2023-10-05)
+
+
+### ⚠ BREAKING CHANGES
+
+* change LSP3 to SupportedStandards:LSP3Profile ([#307](https://github.com/ERC725Alliance/erc725.js/issues/307))
+* new encoding for static value types (not arrays `[]`) ([#288](https://github.com/ERC725Alliance/erc725.js/issues/288))
+* change `ArrayLength` value from `uint256` to `uint128` ([#287](https://github.com/ERC725Alliance/erc725.js/issues/287))
+
+### Features
+
+* add checkPermissions function ([17d2258](https://github.com/ERC725Alliance/erc725.js/commit/17d225843c236951ef1515a0ff91095b5ef27cd3))
+* add schemas for LSP8 + LSP17 ([#311](https://github.com/ERC725Alliance/erc725.js/issues/311)) ([1e8dbf7](https://github.com/ERC725Alliance/erc725.js/commit/1e8dbf765c6c5e250539b402e9bd5a395966a8c2))
+
+
+### Bug Fixes
+
+* decode any uint256 as number not string ([#289](https://github.com/ERC725Alliance/erc725.js/issues/289)) ([37203f1](https://github.com/ERC725Alliance/erc725.js/commit/37203f14d313a0caff75724dc74175c741c1b540))
+* dependencies & example ([#302](https://github.com/ERC725Alliance/erc725.js/issues/302)) ([9979e89](https://github.com/ERC725Alliance/erc725.js/commit/9979e89e438cd9f7cc586d7dc271de969f13b125))
+* incorrect value in schema for array length in `...Map` ([#310](https://github.com/ERC725Alliance/erc725.js/issues/310)) ([0d28b13](https://github.com/ERC725Alliance/erc725.js/commit/0d28b1317dc085078090a8babacf4db517d91a87))
+* Remove hardcoded require ([5279278](https://github.com/ERC725Alliance/erc725.js/commit/527927812b1a05b13f8dc6b14aecaa6d24e98d61))
+* variable naming ([44b4785](https://github.com/ERC725Alliance/erc725.js/commit/44b47851ed63b817edc21c63655d67bac13a7e7f))
+
+
+### Code Refactoring
+
+* change `ArrayLength` value from `uint256` to `uint128` ([#287](https://github.com/ERC725Alliance/erc725.js/issues/287)) ([c95ee8a](https://github.com/ERC725Alliance/erc725.js/commit/c95ee8a53bf25bcf47777054af27cae1fbad8b2f))
+* change LSP3 to SupportedStandards:LSP3Profile ([#307](https://github.com/ERC725Alliance/erc725.js/issues/307)) ([73f3481](https://github.com/ERC725Alliance/erc725.js/commit/73f34818fe152c3ab5299177adc0eddfed6886c5))
+* new encoding for static value types (not arrays `[]`) ([#288](https://github.com/ERC725Alliance/erc725.js/issues/288)) ([f0b04da](https://github.com/ERC725Alliance/erc725.js/commit/f0b04daa57a281c537a8f28594439573188f0dce))
+
+## [0.18.0](https://github.com/ERC725Alliance/erc725.js/compare/v0.17.2...v0.18.0) (2023-08-03)
+
+### ⚠ BREAKING CHANGES
+
+- new encoding for static value types (not arrays `[]`) (#288)
+- change `ArrayLength` value from `uint256` to `uint128` (#287)
+
+### Features
+
+- add checkPermissions function ([17d2258](https://github.com/ERC725Alliance/erc725.js/commit/17d225843c236951ef1515a0ff91095b5ef27cd3))
+- Add new feature "Decode Mapping Key" ([8c1f1fc](https://github.com/ERC725Alliance/erc725.js/commit/8c1f1fcfb15fa43d1d3934b0b15f09d47902bb41))
+
+### Bug Fixes
+
+- decode any uint256 as number not string ([#289](https://github.com/ERC725Alliance/erc725.js/issues/289)) ([37203f1](https://github.com/ERC725Alliance/erc725.js/commit/37203f14d313a0caff75724dc74175c741c1b540))
+- variable naming ([44b4785](https://github.com/ERC725Alliance/erc725.js/commit/44b47851ed63b817edc21c63655d67bac13a7e7f))
+
+### improvement
+
+- change `ArrayLength` value from `uint256` to `uint128` ([#287](https://github.com/ERC725Alliance/erc725.js/issues/287)) ([c95ee8a](https://github.com/ERC725Alliance/erc725.js/commit/c95ee8a53bf25bcf47777054af27cae1fbad8b2f))
+- new encoding for static value types (not arrays `[]`) ([#288](https://github.com/ERC725Alliance/erc725.js/issues/288)) ([f0b04da](https://github.com/ERC725Alliance/erc725.js/commit/f0b04daa57a281c537a8f28594439573188f0dce))
+
 ### [0.17.2](https://github.com/ERC725Alliance/erc725.js/compare/v0.17.1...v0.17.2) (2023-03-14)
 
 - removed ERC725JSONSchemaKeyType duplicate value ([060ee6c](https://github.com/ERC725Alliance/erc725.js/commit/060ee6ce23bda328f727140419de7590f48fc394))
@@ -103,7 +169,6 @@ Minor update to update the LSP-2 schemas.
 
 ### improvement
 
-- change fetchData output to non object ([1d4d570](https://github.com/ERC725Alliance/erc725.js/commit/1d4d57077a7766b3490477efb20f194fc4e00da4))
 - fetchData as same output as decodeData ([59c3a87](https://github.com/ERC725Alliance/erc725.js/commit/59c3a879fefb2b9bfe46b9bea91ff6bd2a528df1))
 - getData as same output as decodeData ([0f3b149](https://github.com/ERC725Alliance/erc725.js/commit/0f3b149f2280e6025a05e8e9ed306facfa63601a))
 - use array for decodeData ([261d100](https://github.com/ERC725Alliance/erc725.js/commit/261d1007f4ff63abd9d794f4e64e5b408ce7c1a3))
diff --git a/docs/classes/ERC725.md b/docs/classes/ERC725.md
index c6a41019..02300358 100644
--- a/docs/classes/ERC725.md
+++ b/docs/classes/ERC725.md
@@ -454,37 +454,14 @@ myErc725.encodeData([
 */
 ```
 
-```javascript
-myErc725.encodeData([
-  {
-    keyName: 'LSP1UniversalReceiverDelegate',
-    value: '0x1183790f29BE3cDfD0A102862fEA1a4a30b3AdAb',
-  },
-]);
-/**
-{
-  keys: ['0x0cfc51aec37c55a4d0b1a65c6255c4bf2fbdf6277f3cc0730c45b828b6db8b47'],
-  values: ['0x1183790f29be3cdfd0a102862fea1a4a30b3adab'],
-}
-*/
-```
-
-</details>
-
-<details>
-    <summary>Encode a <code>JSONURL</code> with hash function, hash and uploaded URL</summary>
-
-```javascript title="Encode a JSONURL with hash function, hash and uploaded URL"
-myErc725.encodeData([
-  {
-    keyName: 'LSP3Profile',
-    value: {
-      hashFunction: 'keccak256(utf8)',
-      hash: '0x820464ddfac1bec070cc14a8daf04129871d458f2ca94368aae8391311af6361',
-      url: 'ipfs://QmYr1VJLwerg6pEoscdhVGugo39pa6rycEZLjtRPDfW84UAx',
-    },
+```javascript title="Encoding object with one key"
+const encodedDataOneKeyV2 = erc725.encodeData({
+  LSP3Profile: {
+    hashFunction: 'keccak256(utf8)',
+    hash: '0x820464ddfac1bec070cc14a8daf04129871d458f2ca94368aae8391311af6361',
+    url: 'ifps://QmYr1VJLwerg6pEoscdhVGugo39pa6rycEZLjtRPDfW84UAx',
   },
-]);
+});
 /**
 {
   keys: ['0x5ef83ad9559033e6e941db7d7c495acdce616347d28e90c7ce47cbfcfcad3bc5'],
@@ -554,33 +531,19 @@ myErc725.encodeData(
 */
 ```
 
-</details>
-
-<details>
-    <summary>Encode multiple keys at once</summary>
-
-```javascript title="Encode multiple keys at once"
-myErc725.encodeData([
-  {
-    keyName: 'LSP3Profile',
-    value: {
-      hashFunction: 'keccak256(utf8)',
-      hash: '0x820464ddfac1bec070cc14a8daf04129871d458f2ca94368aae8391311af6361',
-      url: 'ipfs://QmYr1VJLwerg6pEoscdhVGugo39pa6rycEZLjtRPDfW84UAx',
-    },
-  },
-  {
-    keyName: 'LSP12IssuedAssets[]',
-    value: [
-      '0xD94353D9B005B3c0A9Da169b768a31C57844e490',
-      '0xDaea594E385Fc724449E3118B2Db7E86dFBa1826',
-    ],
-  },
-  {
-    keyName: 'LSP1UniversalReceiverDelegate',
-    value: '0x1183790f29BE3cDfD0A102862fEA1a4a30b3AdAb',
+```javascript title="Encoding object with multiple keys"
+const encodedDataManyKeys = erc725.encodeData({
+  LSP3Profile: {
+    hashFunction: 'keccak256(utf8)',
+    hash: '0x820464ddfac1bec070cc14a8daf04129871d458f2ca94368aae8391311af6361',
+    url: 'ifps://QmYr1VJLwerg6pEoscdhVGugo39pa6rycEZLjtRPDfW84UAx',
   },
-]);
+  'LSP3IssuedAssets[]': [
+    '0xD94353D9B005B3c0A9Da169b768a31C57844e490',
+    '0xDaea594E385Fc724449E3118B2Db7E86dFBa1826',
+  ],
+  LSP1UniversalReceiverDelegate: '0x1183790f29BE3cDfD0A102862fEA1a4a30b3AdAb',
+});
 /**
 {
   keys: [
@@ -1446,6 +1409,7 @@ On non instantiated class, you should provide an `options` object.
 | :-------- | :----- | :------------------------------------------------------------------- |
 | `address` | string | Address of the smart contract to check against a certain interface.  |
 | `rpcUrl`  | string | RPC URL to connect to the network the smart contract is deployed to. |
+| `gas`     | number | Optional: gas parameter to use. Default: 2_000_000.                  |
 
 #### Returns
 
@@ -1473,6 +1437,7 @@ myErc725.supportsInterface('LSP0ERC725Account');
 ERC725.supportsInterface('LSP0ERC725Account', {
   address: '0x0Dc07C77985fE31996Ed612F568eb441afe5768D',
   rpcUrl: 'https://rpc.testnet.lukso.network',
+  gas: 20_000_000,
 });
 // true
 ```
diff --git a/docs/getting-started.md b/docs/getting-started.md
index cbe47702..71b05e92 100644
--- a/docs/getting-started.md
+++ b/docs/getting-started.md
@@ -61,6 +61,7 @@ const address = '0x0Dc07C77985fE31996Ed612F568eb441afe5768D';
 const RPC_URL = 'https://rpc.testnet.lukso.network';
 const config = {
   ipfsGateway: 'https://YOUR-IPFS-GATEWAY/ipfs/',
+  gas: 20_000_000, // optional, default is 2_000_000
 };
 
 const erc725 = new ERC725(schemas, address, RPC_URL, config);
@@ -110,7 +111,7 @@ await erc725.fetchData('LSP3Profile'); // downloads and verifies the linked JSON
 ```
 
 :::tip Try it out
-You can run the code snippit within your browser using the corresponding [StackBlitz example](https://stackblitz.com/edit/erc725js-instantiation?devtoolsheight=66&file=index.js).
+You can run the code snippet within your browser using the corresponding [StackBlitz example](https://stackblitz.com/edit/erc725js-instantiation?devtoolsheight=66&file=index.js).
 
 :::note
 Whenever you can you should import `ERC725` via the named export. However currently we are also providing a default export.
@@ -127,6 +128,7 @@ After the instance has been created, it is still possible to change settings thr
 myERC725.options.schema = '<schema>' // change schema
 myERC725.options.address '<address>' // change address
 myERC725.options.ipfsGateway = '<url>' // used for fetchData(), default: 'https://cloudflare-ipfs.com/ipfs/'
+myERC725.options.gas = 20_000_000 // change gas setting
 
 // NOTE: ERC725.provider can not be changed
 ```
diff --git a/package-lock.json b/package-lock.json
index 813b016f..c7997238 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "@erc725/erc725.js",
-  "version": "0.17.2",
+  "version": "0.20.1",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "@erc725/erc725.js",
-      "version": "0.17.2",
+      "version": "0.20.1",
       "license": "Apache-2.0",
       "dependencies": {
         "ethereumjs-util": "^7.1.5",
diff --git a/package.json b/package.json
index 217f6c87..625e93ab 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@erc725/erc725.js",
-  "version": "0.17.2",
+  "version": "0.20.1",
   "description": "Library to interact with ERC725 smart contracts",
   "main": "build/main/src/index.js",
   "typings": "build/main/src/index.d.ts",
diff --git a/src/constants/constants.ts b/src/constants/constants.ts
index 4915183d..c9948fc9 100644
--- a/src/constants/constants.ts
+++ b/src/constants/constants.ts
@@ -58,47 +58,35 @@ export const METHODS: Record<Method, MethodData> = {
   [Method.GET_DATA_LEGACY]: {
     // Legacy version of ERC725Y - before v0.3.0
     sig: '0x54f6127f',
-    gas: numberToHex(2000000),
-    gasPrice: numberToHex(100000000),
     value: numberToHex(0),
     returnEncoding: Encoding.BYTES,
   },
   [Method.GET_DATA]: {
     // https://github.com/ERC725Alliance/ERC725/blob/v4.0.0/docs/ERC-725.md#erc725y
     sig: '0x4e3e6e9c',
-    gas: numberToHex(2000000),
-    gasPrice: numberToHex(100000000),
     value: numberToHex(0),
     returnEncoding: Encoding.BYTES_ARRAY,
   },
   [Method.GET_DATA_BATCH]: {
     // https://github.com/ERC725Alliance/ERC725/blob/v5.1.0/docs/ERC-725.md#erc725y
     sig: '0xdedff9c6',
-    gas: numberToHex(2000000),
-    gasPrice: numberToHex(100000000),
     value: numberToHex(0),
     returnEncoding: Encoding.BYTES_ARRAY,
   },
   [Method.OWNER]: {
     sig: '0x8da5cb5b',
-    gas: numberToHex(2000000),
-    gasPrice: numberToHex(100000000),
     value: numberToHex(0),
     returnEncoding: Encoding.ADDRESS,
   },
   [Method.SUPPORTS_INTERFACE]: {
     // https://eips.ethereum.org/EIPS/eip-165
     sig: '0x01ffc9a7',
-    gas: numberToHex(2000000),
-    gasPrice: numberToHex(100000000),
     value: numberToHex(0),
     returnEncoding: Encoding.BOOL,
   },
   [Method.IS_VALID_SIGNATURE]: {
     // https://eips.ethereum.org/EIPS/eip-1271
     sig: '0x1626ba7e',
-    gas: numberToHex(2000000),
-    gasPrice: numberToHex(100000000),
     value: numberToHex(0),
     returnEncoding: Encoding.BYTES4,
   },
@@ -183,3 +171,5 @@ export const LSP6_ALL_PERMISSIONS =
   '0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff';
 
 export const COMPACT_BYTES_ARRAY_STRING = '[CompactBytesArray]';
+
+export const DEFAULT_GAS_VALUE = 2_000_000;
diff --git a/src/index.ts b/src/index.ts
index 6a07e404..ec12ebbe 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -37,6 +37,7 @@ import { isValidSignature } from './lib/isValidSignature';
 import {
   LSP6_ALL_PERMISSIONS,
   LSP6_DEFAULT_PERMISSIONS,
+  DEFAULT_GAS_VALUE,
 } from './constants/constants';
 import { encodeKeyName, isDynamicKeyName } from './lib/encodeKeyName';
 
@@ -105,15 +106,20 @@ export class ERC725 {
 
     const defaultConfig = {
       ipfsGateway: 'https://cloudflare-ipfs.com/ipfs/',
+      gas: DEFAULT_GAS_VALUE,
     };
 
     this.options = {
       schemas: this.validateSchemas(schemas),
       address,
-      provider: ERC725.initializeProvider(provider),
+      provider: ERC725.initializeProvider(
+        provider,
+        config?.gas ? config?.gas : defaultConfig.gas,
+      ),
       ipfsGateway: config?.ipfsGateway
         ? convertIPFSGatewayUrl(config?.ipfsGateway)
         : defaultConfig.ipfsGateway,
+      gas: config?.gas ? config?.gas : defaultConfig.gas,
     };
   }
 
@@ -151,20 +157,20 @@ export class ERC725 {
     });
   }
 
-  private static initializeProvider(providerOrRpcUrl) {
+  private static initializeProvider(providerOrRpcUrl, gasInfo) {
     // do not fail on no-provider
     if (!providerOrRpcUrl) return undefined;
 
     // if provider is a string, assume it's a rpcUrl
     if (typeof providerOrRpcUrl === 'string') {
-      return new ProviderWrapper(new HttpProvider(providerOrRpcUrl));
+      return new ProviderWrapper(new HttpProvider(providerOrRpcUrl), gasInfo);
     }
 
     if (
       typeof providerOrRpcUrl.request === 'function' ||
       typeof providerOrRpcUrl.send === 'function'
     )
-      return new ProviderWrapper(providerOrRpcUrl);
+      return new ProviderWrapper(providerOrRpcUrl, gasInfo);
 
     throw new Error(`Incorrect or unsupported provider ${providerOrRpcUrl}`);
   }
@@ -593,12 +599,12 @@ export class ERC725 {
    * supports a certain interface.
    *
    * @param {string} interfaceIdOrName Interface ID or supported interface name.
-   * @param options Object of address and RPC URL.
+   * @param options Object of address, RPC URL and optional gas.
    * @returns {Promise<boolean>} if interface is supported.
    */
   static async supportsInterface(
     interfaceIdOrName: string,
-    options: { address: string; rpcUrl: string },
+    options: { address: string; rpcUrl: string; gas?: number },
   ): Promise<boolean> {
     if (!isAddress(options.address)) {
       throw new Error('Invalid address');
@@ -609,7 +615,10 @@ export class ERC725 {
 
     return supportsInterface(interfaceIdOrName, {
       address: options.address,
-      provider: this.initializeProvider(options.rpcUrl),
+      provider: this.initializeProvider(
+        options.rpcUrl,
+        options?.gas ? options?.gas : DEFAULT_GAS_VALUE,
+      ),
     });
   }
 
diff --git a/src/lib/provider-wrapper-utils.ts b/src/lib/provider-wrapper-utils.ts
index 5f2adf67..0a0d52a0 100644
--- a/src/lib/provider-wrapper-utils.ts
+++ b/src/lib/provider-wrapper-utils.ts
@@ -13,6 +13,7 @@
 */
 
 import * as abi from 'web3-eth-abi';
+import { numberToHex } from 'web3-utils';
 
 import {
   JsonRpc,
@@ -49,6 +50,7 @@ export function decodeResult(method: Method, hexString: string) {
 const constructJSONRPCParams = (
   address: string,
   method: Method,
+  gasInfo: number,
   methodParam?: string,
 ): JsonRpcEthereumProviderParamsWithLatest => {
   const data = methodParam
@@ -59,7 +61,7 @@ const constructJSONRPCParams = (
     {
       to: address,
       value: METHODS[method].value,
-      gas: METHODS[method].gas,
+      gas: numberToHex(gasInfo),
       data,
     },
     'latest',
@@ -69,13 +71,14 @@ const constructJSONRPCParams = (
 export function constructJSONRPC(
   address: string,
   method: Method,
+  gasInfo: number,
   methodParam?: string,
 ): JsonRpc {
   idCount += 1;
   return {
     jsonrpc: '2.0',
     method: 'eth_call',
-    params: constructJSONRPCParams(address, method, methodParam),
+    params: constructJSONRPCParams(address, method, gasInfo, methodParam),
     id: idCount,
   };
 }
diff --git a/src/provider/providerWrapper.test.ts b/src/provider/providerWrapper.test.ts
index 91748eb3..75e8ed94 100644
--- a/src/provider/providerWrapper.test.ts
+++ b/src/provider/providerWrapper.test.ts
@@ -3,6 +3,7 @@ import assert from 'assert';
 import { ProviderWrapper } from './providerWrapper';
 
 const erc725AccountAddress = '0x214be121bB52e6909c5158579b3458f8760f1b2f';
+const defaultGas = 2_000_000;
 
 describe('ProviderWrapper', () => {
   describe('#getOwner', () => {
@@ -15,7 +16,7 @@ describe('ProviderWrapper', () => {
           });
         },
       };
-      const ethSource = new ProviderWrapper(mockProvider);
+      const ethSource = new ProviderWrapper(mockProvider, defaultGas);
 
       const owner = await ethSource.getOwner(erc725AccountAddress);
       assert.deepStrictEqual(
@@ -30,7 +31,7 @@ describe('ProviderWrapper', () => {
           cb(new Error('some error'));
         },
       };
-      const ethSource = new ProviderWrapper(mockProvider);
+      const ethSource = new ProviderWrapper(mockProvider, defaultGas);
 
       try {
         await ethSource.getOwner(erc725AccountAddress);
@@ -47,7 +48,7 @@ describe('ProviderWrapper', () => {
           });
         },
       };
-      const ethSource = new ProviderWrapper(mockProvider);
+      const ethSource = new ProviderWrapper(mockProvider, defaultGas);
 
       try {
         await ethSource.getOwner(erc725AccountAddress);
diff --git a/src/provider/providerWrapper.ts b/src/provider/providerWrapper.ts
index 3f7026db..a3f235d1 100644
--- a/src/provider/providerWrapper.ts
+++ b/src/provider/providerWrapper.ts
@@ -40,18 +40,20 @@ interface GetDataReturn {
 export class ProviderWrapper {
   type: ProviderTypes;
   provider: any;
-  constructor(provider: any) {
+  gas: number;
+  constructor(provider: any, gasInfo: number) {
     if (typeof provider.request === 'function') {
       this.type = ProviderTypes.ETHEREUM;
     } else {
       this.type = ProviderTypes.WEB3;
     }
     this.provider = provider;
+    this.gas = gasInfo;
   }
 
   async getOwner(address: string) {
     const result = await this.callContract(
-      constructJSONRPC(address, Method.OWNER),
+      constructJSONRPC(address, Method.OWNER, this.gas),
     );
     if (result.error) {
       throw result.error;
@@ -115,6 +117,7 @@ export class ProviderWrapper {
       constructJSONRPC(
         address,
         Method.SUPPORTS_INTERFACE,
+        this.gas,
         `${interfaceId}${'00000000000000000000000000000000000000000000000000000000'}`,
       ),
     );
@@ -152,7 +155,12 @@ export class ProviderWrapper {
       );
 
       const result = await this.callContract(
-        constructJSONRPC(address, Method.IS_VALID_SIGNATURE, encodedParams),
+        constructJSONRPC(
+          address,
+          Method.IS_VALID_SIGNATURE,
+          this.gas,
+          encodedParams,
+        ),
       );
 
       if (result.error) {
@@ -172,7 +180,12 @@ export class ProviderWrapper {
     );
 
     const results = await this.callContract([
-      constructJSONRPC(address, Method.IS_VALID_SIGNATURE, encodedParams),
+      constructJSONRPC(
+        address,
+        Method.IS_VALID_SIGNATURE,
+        this.gas,
+        encodedParams,
+      ),
     ]);
     if (results.error) {
       throw results.error;
@@ -232,6 +245,7 @@ export class ProviderWrapper {
         constructJSONRPC(
           address,
           method,
+          this.gas,
           abiCoder.encodeParameter('bytes32[]', keyHashes),
         ),
       );
@@ -248,6 +262,7 @@ export class ProviderWrapper {
       constructJSONRPC(
         address,
         method,
+        this.gas,
         abiCoder.encodeParameter('bytes32[]', keyHashes),
       ),
     ];
@@ -270,7 +285,7 @@ export class ProviderWrapper {
       // But this is already legacy and it won't be used anymore..
       const encodedResultsPromises = keyHashes.map((keyHash) =>
         this.callContract(
-          constructJSONRPC(address, Method.GET_DATA_LEGACY, keyHash),
+          constructJSONRPC(address, Method.GET_DATA_LEGACY, this.gas, keyHash),
         ),
       );
 
@@ -287,7 +302,12 @@ export class ProviderWrapper {
     // But this is already legacy and it won't be used anymore..
     for (let index = 0; index < keyHashes.length; index++) {
       payload.push(
-        constructJSONRPC(address, Method.GET_DATA_LEGACY, keyHashes[index]),
+        constructJSONRPC(
+          address,
+          Method.GET_DATA_LEGACY,
+          this.gas,
+          keyHashes[index],
+        ),
       );
     }
 
diff --git a/src/types/Config.ts b/src/types/Config.ts
index 24e4ab33..15707591 100644
--- a/src/types/Config.ts
+++ b/src/types/Config.ts
@@ -5,12 +5,14 @@ export interface ERC725Config {
    * ```js title=Example
    * const config = {
    *   ipfsGateway: 'https://ipfs.lukso.network/ipfs/'
+   *   gas: 20_000_000 // Optional, default 2_000_000
    * };
    * ```
    * Make sure to use the following format: `<url>/ipfs/`.<br/>
    * Another example: `https://cloudflare-ipfs.com/ipfs/`
    */
   ipfsGateway: string;
+  gas?: number;
 }
 
 export interface ERC725Options {
diff --git a/src/types/Method.ts b/src/types/Method.ts
index e28b49ab..1c794a67 100644
--- a/src/types/Method.ts
+++ b/src/types/Method.ts
@@ -19,8 +19,6 @@ export enum Encoding {
 
 export interface MethodData {
   sig: string;
-  gas: string;
-  gasPrice: string;
   value: string;
   returnEncoding: Encoding;
 }